<?php
 
$output  =   retNull() ;
 if (empty($output)  )
	{ 
	  $ex_condition=false;
	  $operator_seq="-10002";
	  $result_state="-10002";
	  $ok_state="-10002";
	  
	  exit;
	}
 

function  retNull() {
	
	$a ;
	return  $a ;
	 
}